<template>
  <div>
    <el-upload
      :action="uploadUrl"
      :before-upload="handleBeforeUpload"
      :on-success="handleUploadSuccess"
      :on-error="handleUploadError"
      name="file"
      :show-file-list="false"
      :headers="headers"
      style="display: none"
      ref="upload"
      :http-request="customUpload"
    >
      <!-- v-if="this.type == 'url'" -->
    </el-upload>
    <div class="editor" ref="editor" :style="styles"></div>
    <loadCom :load-target="load" :tips="'上传中'" />
  </div>
</template>

<script>
import Quill from "quill";
import "quill/dist/quill.core.css";
import "quill/dist/quill.snow.css";
import "quill/dist/quill.bubble.css";
import { getToken } from "@/utils/auth";
import { putOssTempUrl } from "@/api/oss";
import loadCom from "@/components/Load";
export default {
  name: "Editor",
  props: {
    /* 编辑器的内容 */
    value: {
      type: String,
      default: "",
    },
    /* 高度 */
    height: {
      type: Number,
      default: null,
    },
    /* 最小高度 */
    minHeight: {
      type: Number,
      default: null,
    },
    /* 只读 */
    readOnly: {
      type: Boolean,
      default: false,
    },
    // 上传文件大小限制(MB)
    fileSize: {
      type: Number,
      default: 5,
    },
    /* 类型（base64格式、html格式） */
    type: {
      type: String,
      default: "url",
    },
    // 新增动态参数
    dynamicHeaders: {
      type: Object,
      default: () => ({}),
    },
    dynamicMethod: {
      type: String,
      default: "POST",
    },
    dynamicUrl: {
      type: String,
      default: null,
    },
    ossId: {
      type: [Number, String],
      default: "",
    },
  },
  components: {
    loadCom,
  },
  data() {
    return {
      uploadUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
      headers: {
        Authorization: "Bearer " + getToken(),
      },
      Quill: null,
      currentValue: "",
      options: {
        theme: "snow",
        bounds: document.body,
        debug: "warn",
        modules: {
          // 工具栏配置
          toolbar: [
            ["bold", "italic", "underline", "strike"], // 加粗 斜体 下划线 删除线
            ["blockquote", "code-block"], // 引用  代码块
            [{ list: "ordered" }, { list: "bullet" }], // 有序、无序列表
            [{ indent: "-1" }, { indent: "+1" }], // 缩进
            [{ size: ["small", false, "large", "huge"] }], // 字体大小
            [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
            [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
            [{ align: [] }], // 对齐方式
            ["clean"], // 清除文本格式
            // ["link", "image", "video"] // 链接、图片、视频
            ["image"],
          ],
        },
        placeholder: "请输入内容",
        readOnly: this.readOnly,
      },
      fileType: ["jpg", "jpeg", "png"],
      load: false,
    };
  },
  computed: {
    styles() {
      let style = {};
      if (this.minHeight) {
        style.minHeight = `${this.minHeight}px`;
      }
      if (this.height) {
        style.height = `${this.height}px`;
      }
      return style;
    },
  },
  watch: {
    value: {
      handler(val) {
        if (val !== this.currentValue) {
          this.currentValue = val === null ? "" : val;
          if (this.Quill) {
            this.Quill.pasteHTML(this.currentValue);
          }
        }
      },
      immediate: true,
    },
  },
  mounted() {
    this.init();
  },
  beforeDestroy() {
    this.Quill = null;
  },
  methods: {
    init() {
      const editor = this.$refs.editor;
      this.Quill = new Quill(editor, this.options);
      // 如果设置了上传地址则自定义图片上传事件
      if (this.type == "url") {
        let toolbar = this.Quill.getModule("toolbar");
        toolbar.addHandler("image", (value) => {
          this.uploadType = "image";
          if (value) {
            this.$refs.upload.$children[0].$refs.input.click();
          } else {
            this.quill.format("image", false);
          }
        });
      }
      this.Quill.pasteHTML(this.currentValue);
      this.Quill.on("text-change", (delta, oldDelta, source) => {
        const html = this.$refs.editor.children[0].innerHTML;
        const text = this.Quill.getText();
        const quill = this.Quill;
        this.currentValue = html;
        this.$emit("input", html);
        this.$emit("on-change", { html, text, quill });
      });
      this.Quill.on("text-change", (delta, oldDelta, source) => {
        this.$emit("on-text-change", delta, oldDelta, source);
      });
      this.Quill.on("selection-change", (range, oldRange, source) => {
        this.$emit("on-selection-change", range, oldRange, source);
      });
      this.Quill.on("editor-change", (eventName, ...args) => {
        this.$emit("on-editor-change", eventName, ...args);
      });
    },
    // 上传前校检格式和大小
    handleBeforeUpload(file) {
      if (this.fileType.length > 0) {
        const fileExtension = file.name.split(".").pop().toLowerCase();
        if (!this.fileType.includes(fileExtension)) {
          this.$message({
            message: "非限制类型文件，请重新选择",
            type: "warning",
          });
          return false;
        }
      }
      // 校检文件大小
      if (this.fileSize) {
        const isLt = file.size / 1024 / 1024 < this.fileSize;
        if (!isLt) {
          this.$message.error(`上传文件大小不能超过 ${this.fileSize} MB!`);
          return false;
        }
      }
      const fileType = file.type;
      this.load = true;
      this.$emit("giveMediaType", fileType);
      // return true;
      // 等待父组件设置动态参数
      return new Promise((resolve) => {
        // 等待动态参数设置完成
        const checkDynamicParams = () => {
          if (this.dynamicUrl && this.dynamicHeaders && this.dynamicMethod) {
            resolve(true);
          } else {
            setTimeout(checkDynamicParams, 100);
          }
        };
        checkDynamicParams();
      });
    },
    handleUploadSuccess(data) {
      let quill = this.Quill;
      console.log(process.env.NODE_ENV);
      let length = quill.getSelection().index;
      let imageUrl = process.env.VUE_APP_BASE_API + "/oss/" + data.ossId;
      quill.insertEmbed(length, "image", imageUrl);
      // 调整光标到最后
      quill.setSelection(length + 1);
    },
    // handleUploadSuccess(res, file) {
    //   // 获取富文本组件实例
    //   let quill = this.Quill;
    //   // 如果上传成功
    //   if (res.code == 200) {
    //     // 获取光标所在位置
    //     let length = quill.getSelection().index;
    //     // 插入图片  res.url为服务器返回的图片地址
    //     quill.insertEmbed(
    //       length,
    //       "image",
    //       process.env.VUE_APP_BASE_API + res.fileName
    //     );
    //     // 调整光标到最后
    //     quill.setSelection(length + 1);
    //   } else {
    //     this.$message.error("图片插入失败");
    //   }
    // },
    customUpload(options) {
      this.uploadFile = options.file;
      // console.log("上传文件:", this.uploadFile);
      // 发起请求
      this.$http
        .request({
          method: this.dynamicMethod,
          url: this.dynamicUrl,
          data: this.uploadFile,
          headers: {
            ...this.dynamicHeaders,
          },
        })
        .then((response) => {
          this.requeseputOssTempUrl(options);
        })
        .catch((error) => {
          // 触发 on-error 事件
          options.onError(error);
          this.$message.error("上传文件失败，请重试");
        });
    },
    requeseputOssTempUrl(options) {
      // console.log(this.ossId, 112323);
      if (
        this.ossId &&
        (typeof this.ossId === "number" || typeof this.ossId === "string")
      ) {
        putOssTempUrl(this.ossId)
          .then((res) => {
            this.load = false;
            if (res.success) {
              // 触发 on-success 事件
              options.onSuccess(res.data);
            }
          })
          .catch((err) => {});
      }
    },
    handleExceed() {
      this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);
    },
    handleUploadError(err) {
      this.load = false;
      this.$message.error("图片插入失败");
    },
  },
};
</script>

<style>
.editor,
.ql-toolbar {
  white-space: pre-wrap !important;
  line-height: normal !important;
}

.quill-img {
  display: none;
}

.ql-snow .ql-tooltip[data-mode="link"]::before {
  content: "请输入链接地址:";
}

.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
  border-right: 0;
  content: "保存";
  padding-right: 0;
}

.ql-snow .ql-tooltip[data-mode="video"]::before {
  content: "请输入视频地址:";
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: "14px";
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
  content: "10px";
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
  content: "18px";
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
  content: "32px";
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  content: "文本";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
  content: "标题1";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
  content: "标题2";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
  content: "标题3";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
  content: "标题4";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
  content: "标题5";
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
  content: "标题6";
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: "标准字体";
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
  content: "衬线字体";
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
  content: "等宽字体";
}
</style>
